topology: add support for pod topology constraints to operator (#312)

kedacore · Sep 1, 2022 · 8778582 · 8778582
1 parent ddeb782
commit 8778582
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Showing 5 changed files with 16 additions and 2 deletions.
diff --git a/keda/Chart.yaml b/keda/Chart.yaml
@@ -8,7 +8,7 @@ kubeVersion: ">=v1.20.0-0"
 
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
-version: 2.8.1
+version: 2.8.2
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application.

diff --git a/keda/README.md b/keda/README.md
@@ -106,6 +106,7 @@ their default values.
 | `resources.metricServer`                                   | Manage resource request & limits of KEDA metrics apiserver pod ([docs](https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/)) | `` |
 | `nodeSelector`                                             | Node selector for pod scheduling ([docs](https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/)) | `{}` |
 | `tolerations`                                              | Tolerations for pod scheduling ([docs](https://kubernetes.io/docs/concepts/scheduling-eviction/taint-and-toleration/)) | `{}` |
+| topologySpreadConstraints | object | `{}` | Pod Topology Constraints https://kubernetes.io/docs/concepts/workloads/pods/pod-topology-spread-constraints/ |
 | `affinity`                                                 | Affinity for pod scheduling ([docs](https://kubernetes.io/docs/tasks/configure-pod-container/assign-pods-nodes-using-node-affinity/)) for both KEDA operator and Metrics API Server | `{}` |
 | `priorityClassName`                                        | Pod priority for KEDA Operator and Metrics Adapter ([docs](https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/)) | `` |
 | `extraArgs.keda`                                           | Additional KEDA Operator container arguments| `{}` |

diff --git a/keda/templates/12-keda-deployment.yaml b/keda/templates/12-keda-deployment.yaml
@@ -144,6 +144,10 @@ spec:
       affinity:
         {{- toYaml .Values.affinity | nindent 8 }}
       {{- end }}
+      {{- with .Values.topologySpreadConstraints.operator }}
+      topologySpreadConstraints:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       {{- with .Values.tolerations }}
       tolerations:
         {{- toYaml . | nindent 8 }}

diff --git a/keda/templates/22-metrics-deployment.yaml b/keda/templates/22-metrics-deployment.yaml
@@ -155,6 +155,10 @@ spec:
       affinity:
         {{- toYaml .Values.affinity | nindent 8 }}
       {{- end }}
+      {{- with .Values.topologySpreadConstraints.metricsServer}}
+      topologySpreadConstraints:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       {{- with .Values.tolerations }}
       tolerations:
         {{- toYaml . | nindent 8 }}

diff --git a/keda/values.yaml b/keda/values.yaml
@@ -68,7 +68,7 @@ podDisruptionBudget: {}
   # operator:
   #   minAvailable: 1
   #   maxUnavailable: 1
-  # metricServer: 
+  # metricServer:
   #   minAvailable: 1
   #   maxUnavailable: 1
 
@@ -211,6 +211,11 @@ nodeSelector: {}
 
 tolerations: []
 
+# -- Pod Topology Constraints https://kubernetes.io/docs/concepts/workloads/pods/pod-topology-spread-constraints/
+topologySpreadConstraints: {}
+  #operator: []
+  #metricsServer: []
+
 # -- Affinity for pod scheduling https://kubernetes.io/docs/tasks/configure-pod-container/assign-pods-nodes-using-node-affinity/ for both KEDA operator and Metrics API Server
 affinity: {}
   # podAntiAffinity: